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ADP3156 bảng dữ liệu(PDF) 2 Page - Analog Devices

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Giải thích chi tiết về linh kiện  Dual Power Supply Controller for Desktop Systems
PDF  12 Pages
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ADP3156 bảng dữ liệu(HTML) 2 Page - Analog Devices

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REV. 0
–2–
ADP3156–SPECIFICATIONS
Parameter
Symbol
Conditions
Min
Typ
Max
Units
OUTPUT ACCURACY
ADP3156-1.5 V
VO
1.480
1.500
1.520
V
ADP3156-1.8 V
1.777
1.800
1.823
V
ADP3156-2.5 V
2.475
2.500
2.525
V
OUTPUT VOLTAGE LINE
∆V
O
ILOAD = 10 A (Figure 2)
REGULATION
VIN = 4.75 V to 5.25 V
0.05
%
INPUT DC SUPPLY CURRENT
2
Normal Mode
IQ
VSD = 0.6 V
4.1
5.5
mA
Shutdown
TA = +25°C, VSD = 2.0 V
140
250
µA
CURRENT SENSE THRESHOLD
VOLTAGE
VSENSE(TH)
VSENSE– Forced to VOUT – 3%
125
145
165
mV
CT PIN DISCHARGE CURRENT
IT
TA = +25°C
VOUT in Regulation
65
µA
VOUT = 0 V
2
10
µA
OFF-TIME
tOFF
CT = 150 pF
1.8
2.45
3.2
µs
DRIVER OUTPUT TRANSITION
tR, tF
CL = 7000 pF (DRIVE1, 2)
TIME
TA = +25°C
120
200
ns
POSITIVE POWER GOOD TRIP POINT3
VPWRGD
% Above Output Voltage
5
8
%
NEGATIVE POWER GOOD TRIP POINT
3
VPWRGD
% Below Output Voltage
–8
–5
%
POWER GOOD RESPONSE TIME
tPWRGD
500
µs
CROWBAR TRIP POINT
VCROWBAR
% Above Output Voltage
9
15
24
%
ERROR AMPLIFIER
OUTPUT IMPEDANCE
ROERR
275
k
Ω
ERROR AMPLIFIER
TRANSCONDUCTANCE
gm(ERR)
2.2
mmho
ERROR AMPLIFIER MINIMUM
OUTPUT VOLTAGE
VCMPMIN
VSENSE– Forced to VOUT + 3%
0.8
V
ERROR AMPLIFIER MAXIMUM
OUTPUT VOLTAGE
VCMPMAX
VSENSE– Forced to VOUT – 3%
2.4
V
ERROR AMPLIFIER BANDWIDTH –3 dB
BWERR
CMP = Open
500
kHz
LINEAR REGULATOR FEEDBACK
CURRENT
IFB
0.35
1
µA
LINEAR REGULATOR
Figure 2, VLDOIN = 1.8 V
OUTPUT VOLTAGE
VO2
RPROG = 5 kΩ, R2 = 20 kΩ,
1.47
1.5
1.53
V
IO2 = 1 A
SHUTDOWN (SD) PIN
Low Threshold
SDL
Part Active
0.6
V
High Threshold
SDH
Part in Shutdown
2.0
V
Input Current
SDIC
10
µA
NOTES
1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods. Specifications subject to change without
notice.
2Dynamic supply current is higher due to the gate charge being delivered to the external MOSFETs.
3The trip point is for the output voltage coming into regulation.
Specifications subject to change without notice.
(0 C
TA
+70 C, VCC = 12 V, VIN = 5 V, unless otherwise noted)
1



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